Finding the Fourth Proportional to 134,199.90, 185,202.99 and 80,487.18
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Solution
The fourth proportional to 134,199.90, 185,202.99 and 80,487.18 is: 111,076.58
Step by Step Solution
- Step 1: Write the proportion equation
134,199.90 : 185,202.99 = 80,487.18 : x - Step 2: Convert to fraction form
134,199.90/185,202.99 = 80,487.18/x - Step 3: Cross multiply
134,199.90x = 185,202.99 × 80,487.18 - Step 4: Simplify right side
134,199.90x = 14,906,466,392.67 - Step 5: Solve for x
x = 14,906,466,392.67/134,199.90 - Step 6: Final answer
x = 111,076.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.